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A in the Arrhenius equation

Posted: Mon Mar 13, 2017 1:26 pm
by Cowasjee_Sanaea_3E
I'm still confused as to what A is in the Arrhenius equation?
We never used it in our homework or quiz. Is there a time we will use it?

Is it constant for all equations?

Re: A in the Arrhenius equation

Posted: Mon Mar 13, 2017 2:16 pm
by Monica Habashy 3A
A is the pre exponential factor. Usually it's the same in throughout a type of reaction. You could be asked to find it if you are given all the other values.

Re: A in the Arrhenius equation

Posted: Mon Mar 13, 2017 2:27 pm
by Vandan_Patel_3L
A is also usually used when a catalyst or enzyme is discussed as that is the factor that gets affected when the enzyme positions a molecule in a certain way so that the reaction will occur.